AASTRA 4222 Office for BusinessPhone User Guide EN - Manual (Page 107)

107 BusinessPhone – Dialog 4222 Office / Dialog 3211 & 3212
Installation
Install key panel
Note: Only available for Dialog 4222 Office.
1 Remove the small plastic plate, marked DSS, i.e. with a
screwdriver and connect the cable.
2 Attach the key panel unit.
3 Secure with screws and install stand.
Note: The key panel must be of type DBY 419 01, and it
can only be used with newer exchange versions.
Stand positioning